The pop star revealed she will front the 27 August (17) show at the Forum in Inglewood, California via Twitter on Thursday (27Jul17).

Katy, who is up for five gongs at the event, will also perform at the prize-giving.

Rapper Kendrick Lamar is the top nominee at the 2017 MTV VMAs after scoring eight nominations.

His promo for Humble. will compete for the highest honor of Video of the Year against Bruno Mars‘ 24K Magic, Alessia Cara’sScars To Your Beautiful, Wild Thoughts by DJ Khaled,Rihanna, and BrysonTiller, and TheWeeknd’sReminder.